Gas-generator.



c. L TBNNBY. GAS GENERATOR, APPLIGATIYON FILED APR.19, 1907.

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GAS GENERATOR.

APPLICATION PILED'APR.19, 1907.

Patented o@t.6,1908.

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r? @N-YS Ww I W s M N NN CHARLES I. TENNEY, OF MASON CITY, IOWA.

GAS-GENERATOR.

No. 900,231.V

Specification of Letters Patent.

Patented Oct. 6, 1908.

Application filed. April 19, 1907. Serial No. 369,052.

To all whom it may concern:

Be it known that I, CHARLES I. TENNEY, of Mason City, Cerro Gordo county, Iowa, have invented certain new and useful Im rovements in Gas-Generators, of which t e following is a specification.

My invention relates to generators for producing carbureted water gas and is designed particularly for use in small cities or villages where only a comparatively limited uantity of gas is required and where the use o the ordinary type of water or coal gas-producing apparatus is entirely impracticable.

The object of my invention is to provide a generator having means for the more perfect retention of heat during the generating o eration, whereby a considerable saving in uel is effected.

A further object is to provide a generator of very compact construction and one in which the operator has absolute control over the degree of heat in the superheater and the burning of the fuel gases therein.

My invention consists generally in combining within a single shell a gas generating apparatus usually requiring the employment of three separate, distinct shells or tanks.

Further the invention consists in a generator having an improved arrangement of the carbureting chamber and super heating chamber, whereby overheating of the latter is prevented.

Further, the invention consists in various constructions and combinations, all as hereinafter described and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure 1 is a front elevation artially in section of a gas generator embodying my invention. Fig. 2 is a rear elevation of the same. Fig. 3 is a vertical sectional view of the generator. Fig. 4 is a horizontal sectional view on the line x-x of Fig. 3. Fig. 5 is a vertical sectional view through the superheating chamber on `the line y-fy of Fig. 3.

In the drawing, 2 represents the front wall ofthe generator, preferably of brick or other refractory material, having an upper fuel opening 3, a lower or intermediate opening 4 each having a suitable gas tight door 5 and an ash pit opening 6 having a similar door 7. Within the generator is a vertical fuel or combustion chamber 8, the upper portion of said chamber being opposite the opening 3, the

lower portion opposite the opening 4, and below the opening 4 is a grate 9 beneath which is an ash pit 10 communicating with the opening 6. An air blast pipe 11 and a steam pipe 12 lead into the ash pit through the side wall of the generator. An outer metallic shell 13 incloses the generator and suitable non-heatconducting material such as asbestos 14 is packed between the shell and the walls proper of the generator. An air blast pipe 15 extends through the top of the generator into the upper art of the fuel chamber and an oil pipe 16 a so extends through the top of the generator and communicates with the fuel chamber near the air pipe 15.

I prefer to provide a construction which in effect amounts to two carbureting chambers, one, which I will designate by numeral 17, is arranged horizontally in the upper part of the generator, and the other designated by numeral 18 forms a downwardly extending continuation of the chamber 17. These chambers have bricks or blocks of refractory material 19, arranged checkerwise therein, as shown in Fig. 3 so that the gases passing through the chambers will be compelled to circulate therein following a tortuous passage and heating the brick during such passage. In the rear of the carbureting chamber 17 is a third air blast 20, the function of which is to cause the combustion of a proper amount of fuel gases to sufficiently heat the second carbureting chamber and insure the perfect fixing of the carbureted water gas. The super-heater referred to I have shown in Figs. 3 and 5 located beneath the horizontal carbureting chamber and between the vertical chamber and the fuel chamber 8. I prefer to divide this super-heating chamber into two compartments 21 and 22 separated by a vertical bridge wall 23 -having a passage 24 above it communicating with both compartments. The chamber 21 communicates with the lower portion of the second carbureting chamber and the chamber 22 has an outlet 25 leading to the boiler (not shown). A clean out opening 26 having a door 27 is provided beneath the second carbureting chamber and a steam pipe 28 extends through the rear wall of the generator into the second carbureting chamber. By locating this super-heater beneath the horizontal carbureting chamber and at one side of the vertical chamber and providing it with ascending and descending lues I am able to pass the heat and products of combustion out of the side wall of the generator neary the bottom and directly into the fire box of the boiler.

In operation, the fuel chamber 8 is filled with suitable fuel, and air under pressure is admitted from the pipe 11 and passes up through the grate and through the fuel thereon. A second air blast is admitted through the pipe 15 on top of the fuel chamber and a third air blast enters through the pipe 2O at the rear end of the horizontal carbureting chamber. The second and third air blasts supply a sufficient amount of oxygen to produce an intense heat in the horizontal carbureting chamber, the third blast causing suflicient consumption of the gases to thoroughly heat the vertical chamber. The hot gases descending through the vertical chamber, enter the super-heater and pass from one chamber to the other therein over' the bridge or Wall and finally pass out through the opening 25. By passing the heat and the products of combustion down through the second carbureting chamber and from thence to the first compartment of the su er-heating chamber and then over the bric ge or wall to the second compartment of the super-heating chambenthe hot gases are retained for a longer period of time in contact with the brick or refractory material in the super-heater and the unburned products of combustion are put under a slight pressure causing the more rapid and complete combustion of the same as they enter the boiler. The products of combustion entering the first or horizontal carbureting chamber and passing from thence into the vertical chamber will be under slight pressure caused by the natural ascension of the heat, and being subjected to the blasts of air will produce a most intense heat in the carbureting chamber at the oint where the oil and steam are admitte and where the greatest amount of generation will take place. The super-heater being located below and at one side of these points of intense heat will not become overheated but at the same time will have a sufficiently high temperature developed to fix the carbureted water gas.

When the air blasts have been continued for a sufficient length of time to obtain the desired degree of heat throughout the generator, the air valves are all closed, steam is admitted through the pipes 12 and 28 and hydrocarbon oils are sprayed in through the pipe 16 upon the top of the fuel. The gas produced by this operation will pass through the carbureting chambers and the superheater and finally pass out of the generator to the other apparatus of the system.

I claim as my invention:-

1. A carbureted water gas generator having an upright fuel or combustion chamber and doors therefor, a carbureting chamber communicating with the upper part of said fuel chamber and extending horizontally in said generator, a second carbureting chamber extending downwardly from said horizontal chamber, a super-heating chamber located beneath said horizontal carbureting chamber and between said fuel chamber and said second carbureting chamber, bricks of refractory material arranged in said carbureting chambers and between which tortuous passages are formed for the products of combustion, a wall or bridge dividing said super heating chamber into compartments, a space being provided above said bridge leading from one compartment to the other, one of said compartments having an outlet opening through the wall of the generator.

2. A carbureted water gas generator having an u right combustion chamber )rovided with fue doors, a carbureting chamber communicating with the upper portion of said combustion chamber and extending horizontally in the generator, a second carbureting chamber extending downwardly from said first named chamber, said carbureting chambers having brick or blocks of refractory material arranged therein with spaces between them forming tortuous passages, a superheating chamber provided below said horizontal carbureting chamber and between said second carbureting chamber and said combustion chamber, a wall or bridge dividing said super-heating chamber into compartments, a space being provided above said bridge leading from one compartment to the other and one of said compartments having an outlet opening through the wall of the generator, and air blast pipes leading into the upper and lower portions of said combustion chamber and into said carbureting chambers near the junction of one with the other, substantially as described.

3. A carbureted water gas generator comprising an upright combustion chamber, a horizontal carbureting chamber communieating with said combustion chamber, a super-heating chamber located beneath said horizontal carbureting chamber, a wall provided in said super-heating chamber and dividing it into compartments communicating with one another, one of said compartments having an inlet opening communicating with said horizontal carbureting chamber and the other of said compartments having a gas outlet opening, substantially as described.

4. A carbureted water gas generator comrising an upright combustion chamber, a liorizontal carbureting chamber located in the upper part of the generator and communicating with the upper portion of said combustion chamber, a vertical carbureting chamber forming a descending continuation of said horizontal carbureting chamber, and a super-heating chamber located beneath said horizontal carbureting chamber and between of said compartments, substantially as de 10 said vertical carbureting chamber and said scribed. fuel chamber, and communicating With said In Witness whereof, I have hereunto set vertijl carburelting chalrlnber ard hving a my hand this 5th day of April 1907.

5 suta e gas out et, a Wa or bri ge ividing said super-heating chamber into compart- CHARLES I TENNEY ments, a space being provided above said Witnesses: bridge leading from one compartment to the W. O. MGELROY, other, said gas outlet being located in one GUssIE GREIBELING. 

